head to head · open source
Mattermost vs helm-secrets
Mattermost has 39,097 GitHub stars, 9,006 forks, 1,012 open issues and last shipped yesterday. helm-secrets has 2,029 stars, 154 forks, 1 open issues and last shipped 8 days ago. Mattermost leads on adoption by 1,827% (39,097 vs 2,029 stars). Mattermost is written in TypeScript under a custom or non-standard licence; helm-secrets is written in Shell under Apache-2.0. Mattermost has attracted 23% as many forks as stars, helm-secrets 8%. Mattermost was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Mattermost | helm-secrets | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 2.0K |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | Shell |
| Last push | 2026-09-18 | 2026-09-11 |
| Forks | ⑂ 9.0K | ⑂ 154 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Mattermost if
- You weight community size — 39K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick helm-secrets if
- You want the helm-secrets feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Shell
- You evaluated both and helm-secrets fits your workflow better
About Mattermost
Mattermost is an open core, self hosted collaboration platform for teams that need secure chat, workflow automation, voice calling, screen sharing, and AI integration while keeping the deployment under their own control.
read the full Mattermost overview →
About helm-secrets
helm secrets is a Helm plugin that decrypts encrypted Helm value files on the fly, built for teams that keep Kubernetes secrets in Git or a cloud native secret manager and deploy charts with Helm or a GitOps operator such as ArgoCD.
read the full helm-secrets overview →
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Frequently asked questions
Is Mattermost or helm-secrets more popular?
Mattermost has 39,097 GitHub stars and helm-secrets has 2,029. Mattermost has the larger community by that measure.
Are Mattermost and helm-secrets free?
Both are open source. Mattermost has no licence declared in this registry, and helm-secrets is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Mattermost and helm-secrets?
Mattermost is written in TypeScript and helm-secrets in Shell. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Mattermost or helm-secrets?
Choose Mattermost if you want the larger community (39,097 stars) or its Custom / other licence terms. Choose helm-secrets if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.